Title
The optimal error estimate and superconvergence of the local discontinuous Galerkin methods for one-dimensional linear fifth order time dependent equations.
Abstract
In this paper, we investigate the optimal error estimate and the superconvergence of linear fifth order time dependent equations. We prove that the local discontinuous Galerkin (LDG) solution is ( k + 1 ) th order convergent when the piecewise P k space is used. Also, the numerical solution is ( k + 3 2 ) th order superconvergent to a particular projection of the exact solution. The numerical experiences indicate that the order of the superconvergence is ( k + 2 ) , which implies the result obtained in this paper is suboptimal.
Year
DOI
Venue
2016
10.1016/j.camwa.2016.05.030
Computers & Mathematics with Applications
Keywords
Field
DocType
Local discontinuous Galerkin method,Superconvergence,Error estimate
Discontinuous Galerkin method,Exact solutions in general relativity,Mathematical optimization,k-space,Mathematical analysis,Superconvergence,Piecewise,Mathematics
Journal
Volume
Issue
ISSN
72
3
0898-1221
Citations 
PageRank 
References 
2
0.37
9
Authors
3
Name
Order
Citations
PageRank
Hui Bi120.71
Chengeng Qian220.37
Yang Sun34615.21